I'm a fan of these Fleischer Superman cartoons. I love the detail and craftmanship that goes into each one. This is an adventurous one where Clark and
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Lois go with an explorer into a huge set of caverns with surprising things to see down there. Having been known to explore a cave or two around the world myself, I'm wishing I could find something as amazing as their discovery down there. I can dream can't I? This is a fun one!